Create Basic Challenge Engine with MongoDB Integration

[Razano26]

Create a basic challenge engine that fetches challenges from MongoDB and assigns them to players when they join the server. This engine should also log the player’s progress in the player_progress collection.

Tasks:

• Fetch a random challenge from the challenges collection.
• Assign the challenge to a player when they join and log it in player_progress.
• Ensure that progress is tracked in MongoDB.